一直不明白为什么会这样，无法上传图片，无法上传附件，点击选择上传文件按钮没有反应。最后解决方法就是下载fusionapp2.0 最新版本，网上很多提供下载的都是老版本。

然后在代码中添加

--Adam·Eva
require "import"

local uiManager=activity.getUiManager()
local webView=uiManager.getCurrentFragment().getWebView()

local WebChromeClient = luajava.bindClass "android.webkit.WebChromeClient"
webView.setWebChromeClient(luajava.override(WebChromeClient,{
  onShowFileChooser=function(a, view, valueCallback, fileChooserParams)
    --print(a, view, valueCallback, fileChooserParams)
    uploadFile=valueCallback
    local intent = fileChooserParams.createIntent()
    activity.startActivityForResult(intent, 1);
    return true;
  end,
}))

onActivityResult=function(req,res,intent)
  local Activity = luajava.bindClass "android.app.Activity"
  local Uri = luajava.bindClass "android.net.Uri"
  if (res == Activity.RESULT_CANCELED) then
    if(uploadFile~=nil )then
      uploadFile.onReceiveValue(nil);
    end
  end
  local results
  if (res == Activity.RESULT_OK)then
    if(uploadFile==nil or type(uploadFile)=="number")then
      return;
    end
    if (intent ~= nil) then
      local dataString = intent.getDataString();
      local clipData = intent.getClipData();
      if (clipData ~= nil) then
        results = Uri[clipData.getItemCount()];
        for i = 0,clipData.getItemCount()-1 do
          local item = clipData.getItemAt(i);
          results[i] = item.getUri();
        end
      end
      if (dataString ~= nil) then
        results = Uri[1];
        results[0]=Uri.parse(dataString)
      end
    end
  end
  if(results~=nil)then
    uploadFile.onReceiveValue(results);
    uploadFile = nil;
  end
end

打包后就可以了。